# HIIT Timer vs MuscleTimerPro

The clearest difference is ads: MuscleTimerPro at none against HIIT Timer's shown. MuscleTimerPro also leads on update cadence (every 2 weeks vs every 5 months). On price, in-app purchases, device support and iOS requirement there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

HIIT Timer ships an update every 5 months, MuscleTimerPro every 2 weeks. The most recent releases landed on October 25, 2026 and October 4, 2026 respectively.

## The numbers

| Metric | HIIT Timer | MuscleTimerPro |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | Yes | **No** |
| Update frequency | Every 5 months | **Every 2 weeks** |
| Size | 24 MB | 56 MB |
| Requires iOS | 16.1 | **15.1** |
| Devices | iPhone, Apple Watch | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Yoshikazu Takahashi](https://appshunter.io/developer/1557592781) | [JIN TANDA](https://appshunter.io/developer/1865935191) |

## What reviewers say

### HIIT Timer

[App page](https://appshunter.io/ios/app/hiit-timer/id1557592779)

**In-app purchases:** none


### MuscleTimerPro

[App page](https://appshunter.io/ios/app/muscletimerpro/id6757308856)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is HIIT Timer free?

HIIT Timer is free to download, with no in-app purchases.

### Is MuscleTimerPro free?

MuscleTimerPro is free to download, with no in-app purchases.

### Do HIIT Timer or MuscleTimerPro have ads?

HIIT Timer shows ads; MuscleTimerPro does not.

### Which is updated more often, HIIT Timer or MuscleTimerPro?

HIIT Timer ships an update every 5 months, and MuscleTimerPro every 2 weeks. Most recently, HIIT Timer was updated on October 25, 2026 and MuscleTimerPro on October 4, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*